Miklos Szeredi <[email protected]> wrote: > > How about this patch? It tries to solve this race without additional > locking. If refcount is already zero, it will increment and decrement > it. So be careful to only call grab_namespace() with vfsmount_lock > held, otherwise it could race with itself. (vfsmount_lock is also > needed in this case so that mnt->mnt_namespace, doesn't change, while > grabbing the namespace) How about using cmpxchg? David - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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